Burner structure



Jan. 5, 1932. c. B. OVERLY 1,839,584

BURNER STRUCTURE Filed March 15, 1929 5 Sheets-Sheet 1 INVENTOR.

Jan. 5, 1932. c OVERLY 1,839,584

BURNER STRUCTURE Filed March 15, 1929 s Sheets-Sheet 2 INVENTOR. CMence Orzri y.

ZSZJZM' ATTORNEY.

C. B. OVERLY BURNER STRUCTURE Jan. 5, 1932.

5 Shets-Sheet 3 Filed March 15, 1929 W ATTORNEY.

Patented Jan. 5, 1932' UNITED STATES PA ENT OFFICE CLARENCE B, ovERLY, OEDETROIT, MICHEGAN, AssTeNoa, BY MESNE ASSIGNMENTS,

To-oLAYToN & LAMBERT MANUFACTURING- COMEANY, or DETROIT, MICHIGAN, A

CORPORATION OF .DELAW ABE BURNER sTnucTURE Application filed March 15, 1929. Serial No. 347,333.

This invention relates to burner structure, and has to do particularly with liquid fuel burner structureof the type wherein the vaporized fuel from the generator is utilized to accelerate the starting operation;

The use of vaporized fuel initially ejected from the generator to assist in accelerating the starting of liquid fuel burners has recently been developed and burner structures embodying this principle are well illustrated in the pending applications of Charles F. Lambert Nos. 237,701 and 240,961, filed December 5 and 19, 1927,respectively. The structures referred to utilized astationary generating tube, a stationarypriming cup and a movable blast reflector for deflecting vaporized fuel, initially issuing from the stationary generator, downwardly and backwardly over the priming cup and against the generator. Such structures have been very satisfactory and are now in commercial use, but such structures are open to the objection that an opening is required between the priming cup and the space in front of the.

generating tube with the result that there sometimes is a tendency of the flames from the auxiliary burner for the generating'tube to be drawn through such opening and thus cause pre-ignition of the gases issuing from the generating tube.

It is the object of the present invention to provide blast deflectors 'for use in starting liquid fuel'burners of the type describedsin the above mentioned application, but which are also provided with an additional means for positively preventing the drawing in of any outside flames into the mixing chamber or the space between the generator tube and the mixing tube.

More specifically the present invention contemplates the provision of burner structure. having a stationary generator tube, a

stationary priming cup positioned beneath the generating tube, a partition plate at the end of said tube and having an opening for permitting the deflection of a; blast of flame backwardly against the generating tube and a pivoted deflector member having an extension thereon, said extension being so arranged and' said member being so pivoted therewith; a 4

IS a vertical section taken-on line 5 that when said deflector is in starting position, the vaporizing fuel and flames will be deflected rearwardly through said opening in the partition plate but that when the deflector member is moved to one side-to permit normal operation, said extension will be automatically moved to'close said opening in the partition plate. i I

In the drawings:

Fig. 1 is a plan view of'a liquidfuelburm erof the firenot type and illustrating the general arrangement of generator tube, priming cup, and auxiliary burner used Fig. 2 2-2 of Fig. 1 and showing in particular the relative positioning of the generator tube, theauxiliary burner,'the priming cup and the deflector-member when in a normal defleeting position; a t

Fig. 3 is an enlarged'fragmentary side elevation of the operating parts of thefirepot adjacent the end of the generator tube.

Fig. .4 is a vertical longitudinal section taken through the structure shown in Fig- 3 and illustrating my novel deflectingunember in normal deflecting position. a I

Fig. 5 isa sectional view similar to Fig. i'butshowing' the deflector moved out'of position after the starting operation and also showing the novel manner of utilizing the extension of the deflector to close the-space beneath the generating tube. I

Fig. 6 is a sectional plan view of a modified structure showing the blast deflector mounted on a vertical pivot, the deflector in this figure being shown-in a normally inoperative position, while the extension thereof is positioned to close the space beneath the through the partition opening.

Fig. 8 is a sectional view taken of line 88 yes of 6 and-showing the deflector extension fitting in the opening in the partition plate. Fig. 9 is a sectional view taken on line 99 of Fig. 'Z and showing the extension moved loo to one side to uncover the opening in the partition plate.

In illustrating the present invention, I have shown the same as embodied in a firepot, but it will be understood that the invention is equally welladapted to torch structure or any other burner structure of similar design.

In the embodiment shown, the firepot preferably comprises an annular burner member 1 which is supplied with vaporized fuel by means of a suitable conduit 2. This conduit 2 terminates in a mixing chamber 3, the entrance of which is suitably spacedfrom the outlet of a generator tube 4.

I The outlet-end of the generator tube 4 is preferably supported by a suitable head which forms a part of a partition member 5. The space between the partition 5 and the entrance end of the mixing chamber 3 may be open or may be enclosed by means of a suitable housing 6.-

A permanently positioned fuel pan 7 is located beneath the generator tube 4 and a branch conduit 7a is preferably positioned along theside of the generator'tube as best SllOWIl'lIl Figs; 1 and 2. The fuel pan or priming cup (iserves to assist in initially starting the vaporization of the fuel in the tube-and theauxiliaryburner ofthe auxiliary conduit serves to maintain a vaporizing temperature. A blast deflector 8 is pivotally mounted within the space between the partition member 5. and the inlet ofthe 'mixing chamber 3 as best shown in Figs. 3, 4 and 5. This deflector memberis so shaped and so pivoted as at 9 that when in the position shown in Fig. 4 it will serve to deflect vaporized fuel issuing from the tube downwardly and backwardly against the generator tube 4. A suitable arm 10 is connected to the. deflector member 8 and suitable lugs 11 and 12 serve to position such an arm in two positions whereby the deflector member may be held in two positions as shown in Figs. 4 and 5.

To permit the rearward deflection of the vaporized gases and flames, the partition plate 5 is provided-with a suitable opening 13. The pivot point 9 for the .deflector member is positioned just beneath this opening 13 and the deflector member 8 is provided with an extension 14 which is so formed that, in the operative position of the blast deflector as shown in Fig. 4, it will permit the conducting of the liquid fuel to the priming cup, but that when the deflector 8 is moved to the position shown'in Fig. 5 it will substantially close the opening '13 so as topositively prevent the drawing in of any flames from the burner 7 a through the opening 13 and into thespa'ce adjacentthe mixing chamber. The provision of this extension member as a part .of the deflector member insures that the opening 13 will always be closed when the burner member is in normal operation, because it is impossible to operate the main burner member unless the deflector is moved away from its normal deflecting position.

The operation of this device will be obvious. The liquid fuel is first allowed to flow through the generator tube 4 and a small quantity of the same is allowed to flow out through the outlet so as to strike the deflector and be conducted to the priming cup. After a small amount of liquid fuel has accumulated in the priming cup the valve in the inlet end of the generator tube is closed and the liquid fuel in the priming cup ignited. The open flames from the priming cup quickly heat the generator tube to vaporize the liquid fuel therein and this vaporized liquid fuel will be forced outwardly under the pressure against the deflector member 8. The shape of the deflector member will cause the vaporized fuel to be deflected backwardly overthe surface of the liquid fuel in the priming cup and directly against the generating tube so as to accelerate the heating thereof and the starting of the generating apparatus. This blast of flame from th'e'deflector will quickly heat up the generator tube with the result that when substantially all the gases are emitted from the generator tube, the tube will be hot enough for continued permanent operation at which time the lever 10 is moved to position the deflector 8 in the position shown in Fig. 5, whereby the vaporized gases will be conducted through the main manifold 2 to the auxiliary burner 7 a and the main burner 1. The extension member or baffle 14 will sufficiently'close the opening 13 to prevent the drawing in of any flames from the auxiliary burner.

Inth-e modification shown in Figs. 6-9, a deflector member 15 is positioned to swing around a vertical axis 16 so as to permit the positioning of the deflector in front of the generator tube as shown in Fig. 7 or to one no side of the axis of the tube as shown in Fig.

6. In this modification the inlet of the mixing chamber may be designated as'at 17 and an extension of the priming cup-7 is formed as at 18, whereby in case the deflector member 15 should be accidentally out of position, the liquid fluid will be conducted back to the priming cup by means of such extension 18.

In this modification the deflector 15 is provided with an extension 19 which is adapted 0 to close the opening 13 in the partition plate 5. Figs. 8, and 9 show the extension 19 in position to close the opening in the partition and in open position to permit the rearward direction of the flames;

W hat I claim is: i

1. A liquid fuel burner comprising a generating member, a burner positioned adjacent the outlet end of the generating member, for normally maintaining the same at vaporin front of or to one side of said generator, and an extension member so positioned relative to said pivot point that when said deflector member is moved to one position, said extension is moved to a position to close said opening.

In testimony whereof I aflix my signature.

CLARENCE B. OVERLY.

tube, an auxiliary burner positioned along side of the generator tube, a mixing chamber spaced from the end of the generator tube and said plate, a pivotally mounted blast deflector movable in the space between the generating tube and mixing chamber, an

opening in said partition plate for receiving the blast from said deflector and a member connected to said deflector and adapted in one position of the deflector to close said last named opening and in another position of the deflector to be moved away from said opening.

8. A liquid fuel burner comprising a generating tube, a partition member havingan opening for receiving the end of the tube, a stationary priming pan positioned beneath the generating tube, an auxiliaryburner p0- sitioned' adjacent to said tube, a deflector member movable to a position in front of said generating tube to act as a blast deflector and movable to a position away from said generating tube to permit conducting of vaporized fuel to the burner, and opening in said partition member serving as a passage way for the blast from said deflector and means actuated by the movement of said deflector member to open or close said opening.

4. A liquid fuel burner comprising a stationary generating tube, an auxiliary bu'rner posltioned along side thereof, a statlonary priming cup positioned beneath the generating tube, a deflector member pivotally mounted to be moved to a position in front of the generator tube or to one side of the axis thereof and an extension formed integrally with said deflector member and acting, when said deflector is moved away fromsaid axis, as a baffle to, restrict the flames from said auxiliary burner to the space to the rear of the end of -the generating tube.

5. A liquid fuel burner comprising a sta tionary generating tube, a partition plate havinganopening cooperating with the end of said tube, an auxiliary burner positioned along one side of said tube, a stationarypriming cup positioned beneath said tube, an

openinginsaidpartitionplatebeneath the end of said generator tube, a blast deflector pivotally mounted substantially in the plane of said partition plate and movable to a position 1 

